Ci update

• change ci rules : https://gitlab.cta-observatory.org/cta-computing/dpps/CTADIRAC/-/issues/77
• In Dockerfile: Instead of ADD all CTADIRAC files, COPY only src and setup for pip installation : https://sonar-cta-dpps.zeuthen.desy.de/security_hotspots?id=cta-computing_dpps_CTADIRAC_AYcypMiTBJOBl6qHRhPT&hotspots=AYppitQBggZ7qQE00K3_